<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 引入Vue -->
    <script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>
    <!-- 准备一个容器 -->
    <div id="root">
        <!-- 遍历数组 -->
        <h2>人员列表</h2>
        <button @click="updateMei">更新马冬梅的信息</button>
        <ul>
            <li v-for="(p,index) of personArr" :key="p.id">{{p.name}}-{{p.age}}-{{p.gender}}</li>
        </ul>
    </div>
</body>
<script type="text/javascript">
    Vue.config.productionTip = false; //阻止vue在启动时产生产提示

    let vm = new Vue({
        el: '#root',
        data() {
            return {
                personArr: [
                    { id: '001', name: '马冬梅', age: 18, gender: '女' },
                    { id: '002', name: '周冬雨', age: 19, gender: '女' },
                    { id: '003', name: '周杰伦', age: 19, gender: '男' },
                    { id: '004', name: '温兆伦', age: 20, gender: '男' },
                ]
            }
        },
        methods: {
            updateMei() {
                // this.personArr[0].name='马老师'//奏效
                // this.personArr[0].age=50//奏效
                // this.personArr[0].gender='男'//奏效
                this.personArr[0] = { id: '001', name: '马老师', age: 50, gender: '男' }
            }
        },
    })
</script>

</html>